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<html lang="zh-CN">
<head>
    <meta charset="UTF-8">
    <title>Document</title>
    <style>
        h1 {
            color: green;
            font-size: 30px;
        }
    </style>
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<body>

    <h1>欢迎来到尚硅谷</h1>
    
</body>
</html>